ABSTRACT Three field experiments to investigate the partial nutrient balance (N and K) in cassava/soybean intercrop system were conducted at University of Nigeria, Nsukka in a derived Savannah location of South Eastern Nigeria. Effect of fertilizer rate, residual fertilizer and soybean residue management on growth and yield of soybean and cassava and soil nutrient reserve were studied. Soybean growth and yield were significantly affected by their varieties, fertilizer rate and cropping syste...
ABSTRACT These studies on evaluation of cassava cultivars and intercropping with legumes as an integrated nematode control strategy in cassava production were carried out as 15 greenhouse/microplot and field experiments. Of the 200 cultivars screened for resistance to Meloidogyne spp., only 76 survived and from this lot only 3 lines 77/227, TMS30572 and 73/222, showed any resistance while 7 others namely NR8082, 75.668, 73/238 (Egbenegbe), 73/295, 73/118, 75740(Panya), 82/00661 and 73295B we...
ABSTRACT A diallel set consisting of p 2 combinations (p parents ½ P(p-1) F2 hybrids, and the backcrosses among eight rice breeding lines were grown in replicated trails. The eight rice breeding lines were selected from an initial thirty one rice breeding lines comprising eighteen medium maturing rice lines and thirteen early maturing rice lines on the basis of their maturity (early to medium ), plant height (semi – dwarf to intermediate ), tillerring ability (low to high) and spikelet fe...
ABSTRACT The main Karoo Basin of South Africa contains a relatively continuous sequence of continental deposits that accumulated over a 100 million year period from Permo-Carboniferous (280 Ma) to early Jurassic (180 Ma). In the southwestern region of the basin the Karoo succession is approximately 4 000 m thick, the upper half of which consists of vertebrate fossil-bearing fluvial rocks of the Beaufort Group. This study deals with Lower Beaufort (Adelaide Subgroup) strata belonging to the Te...
EXTENDED ABSTRACT The preliminary experiment was done by using Jaffa orange variety to assess the effects of different concentrations of hexanal, calcium chloride and smoke treatment on physicochemical quality. Jaffa orange fruits were separately (i) dipped in hexanal at 0.01%, 0.02% and 0.04% volume/voume for five minutes (ii) dipped in calcium chloride 1%, 2% and 4% weight/volume for five minutes (iii) fruits were smoked by burning 0.5 kg, 1.0 kg and 1.5 kg of dry banana leaves (iv) Untre...
ABSTRACT Development of maize populations resistant to stem borers depends largely on the existence of useful genes or alleles, which can combine to confer resistance to progenies. Such genes are often available in areas of stress, having been responsible for the survival of such crops over the years. Pink stem borer, Sesamia calamistis (Hampson, Noctuidae) and sugarcane borer, Eldana saccharina (Walker, Pyralidae) are endemic in southeastern Nigeria. Damages caused by the larvae of these mo...
EXTENDED ABSTRACT The bean root rot disease mainly Pythium spp. is a major problem affecting bean production especially in the major bean producing areas of the Great lakes region including southwestern Uganda, Rwanda, western Kenya, northern and the southern highlands of Tanzania. The problem of Pythium bean root rot appears to be made worse by declining soil fertility, resulting from intensive land cultivation by the small holder farmers. Probably for a more sustainable farming system, br...
ABSTRACT The patterns of gene effects on agronomic and some quality traits of eight genotypes of rice (Oryza sativa L.) and their progenies were studied using Diallel analysis method 1 involving parents, F1 hybrids and their reciprocals. The eight genotypes studied were selected for their agronomic performance and protein content from thirty genotypes evaluated in a randomized complete block design and replicated three times at the Teaching and Research Farm of the Federal University of Tech...
EXTENDED ABSTRACT In Tanzania, limited attention has been channeled towards the assessment of the fertility status of the soils in areas perceived as suitable for agricultural activities, mainly crop production. In the absence of reliable soil fertility data and information, agricultural land use, and in particular crop production has resulted in very low yields of most of the crops, with subsequent land degradation. The Solomon Mahlangu Campus (SMC) farm – Sokoine University of Agricultu...
ABSTRACT The present study aimed at examining the effect of environment on growth and yield performance of some common bean (Phaseolus vulgaris L.) genotypes. The study was conducted during the season of 2007/2008 at SUA Mlali and Mgeta locations in Morogoro region. Ten bean genotypes obtained from SUA Bean Project were used. The beans were SUA90, ROJO, PESA, MSHINDI, ZAWADI, EG10R43, EG21R30, EG10R5, EG10R13 and one local genotype. SUA90, ROJO and one local genotype found in each location w...
ABSTRACT The study on the effects of phosphorus (P) levels on yield components and yield of drought resistant common bean lines was carried out at Agricultural Research Institute- Uyole in the Southern Highlands of Tanzania, during the 2010/2011 cropping season. The institute is located at latitude 08o 56’ S, longitude 033o 06’ E and altitude of 1795 m above sea level. The overall objective of this study was to find out how to increase grain yield of drought resistant common bean lines t...
ABSTRACT This study was conducted in Mbeya, Morogoro, Kilimanjaro, Shinyanga and Dar es Salaam regions. The overall objective of the study was to establish the magnitude of rice blast disease in Tanzania and its contribution to yield losses. Rice is an important staple food crop and is affected by blast disease with suspected high yield losses of up to 100%. Surveys were conducted in two years (2012 and 2014) to observe disease prevalence of rice blast disease in two different ecosystems in M...
ABSTRACT Fusarium wilt is a plant disease caused by Fusarium udum (Butler). It is a soil and seed borne fungus which causes significant yield losses in susceptible cultivars throughout the pigeonpea growing areas. Numerous control measures have been suggested to alleviate the problem but their success has still remained low due to prohibitive costs. Development of resistant pigeonpea varieties is sought as an alternative for control of the disease. However, the task of developing resistant pi...
ABSTRACT Studies were conducted on nine (9) bambara groundnut (Voandzeia subterranea) accessions representative of cultivars cultivated in Ghana, Swaziland and Zimbabwe at the University Farms, Legon, on two planting dates.
ABSTRACT The performance of 16 cultivers of common wheat was studied at Kpong in 8 monthly plantings to